Home / 3,380.97-5,074.52-2,135.40

Finding the Fourth Proportional to 3,380.97, 5,074.52 and 2,135.40

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Solution

The fourth proportional to 3,380.97, 5,074.52 and 2,135.40 is: 3,205.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.97 : 5,074.52 = 2,135.40 : x
  2. Step 2: Convert to fraction form
    3,380.97/5,074.52 = 2,135.40/x
  3. Step 3: Cross multiply
    3,380.97x = 5,074.52 × 2,135.40
  4. Step 4: Simplify right side
    3,380.97x = 10,836,139.73
  5. Step 5: Solve for x
    x = 10,836,139.73/3,380.97
  6. Step 6: Final answer
    x = 3,205.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.